Rolls for sheet-metal-forming machines



E H. SCOTT. ROLLS FOR SHEET METAL'FORMING MACHINES.' APPLICATION FILEDMVAY 16| 192|.

1,415,408. v ,Patented May 9, 1922.

orti@ E HARRISON SCOTT, OF RICHMOND, INDIANA, ASSIGNORTOJOHNSONAUTOMOBIIE A SHEET METAL WORKS, 0F RICHMOND, INDIANA, A CORPORATION 0FINDIANA.

nous non, SHEET-METAL-FORMING MACHINES.

-igtiaftoaVl Application led May 16,

specication and exposition, being such as.`

will enable others to make and use the same as intendeda i y y Thisinvention is intended particularly to be included in a machine forforming sheet metal fenders for automobiles or the like, wherein sheets`of metal are -given longitudinal curves and cross sectional curves, andalso forming marginal flanges.

The object therefore of this particular invention is to provide meanswhereby the sheet of metal being formed will be guided in a direct lineand prevented from slipping or working laterally, thereby insuring amore perfect and uniform product and that with less labor and attentiondevoted thereto.

Other minor objects and particular advantages ofthe invention Willsuggest themselves to a'mechanic in the course of the followingdescriptiom' and that which is new and useful will be set out in theappended` claims terminating this specification.

One method for carrying out the principles of my invention in apractical and eiicient manner is shown in the accompanying drawings, inwhich- Figure 1 is a front elevation of a pair of rolls, with which mypresent invention is incorporated. Figure 2 is a vertical centralsection of the parts shown in Fig. 1. Figure 3`is an end elevation ofthe upper roll, also showing one of the collar bearings. And Figure 4 isan end elevation of the upper roll, the collar bearing omitted, andshowing the cavity for the collar bearing.

Similar indices denote out the several views.

I will now take up a detailed description like parts throughof theconstruction and the operation of my 1 invention, wherein I willsetforth the several features as fully and as comprehen-- sively as Imay.

Referring now to the drawings in detail:4

Specification of Letters.Patent.`

l l Patented lvIay leer. semana-169,964. Y metal forming machine wherebysaid shafts may bev revolved'by power, and they are adapted to moveVtoward and from each othery in order to separate Vthe rolls'or 4toybring them into resilient contact with each othe'r""' C i' Secured lonthe shaft 1 is Vthe "male, roll whichis composed of fthe two identicalmem?" bers 3 and 4 which are adapted Ato be spaced resiliently vapartbyfmeans' of the spring 5, thereby forming anl expansion roll, as' shownlin Fig'. 1""of Letters Patentr No. 1,360,450,

dated vvNov. k30 1920,however the present: in`

vention mayV be employed equally"wellL when said roll is formed solidor' in onepl-i'ec'e, or as shown'in Fig. lof saidA patent'.

Formed in the ends or outer faces of the male-roll, that is in the endsof the members 3 and a, are the cavities 6, which cavities surround the`vshaft 1 and are concentric therewith. f

Numerals'? and 8 denotethe collar bearings, the same being revolvablymounted in i their respective cavities 6, and they are also free torevolve on the shaft 1.

Numeral 9 denotes the main or body portion of the female roll, the samebeing secured on the shaft 2, said roll 9 being retained in properposition 'by the bearings 10 and 11. p v

The `face of the male roll is formed convex, while the face of thefemale roll `is formed concave, as indicated by numeral 12, the saidfaces being formed of the same curvature whereby they may contactlongitudinally at every point from the collar 7 to the collar 8, atwhich points the periphery of the roll 9 extends out in an axialdirection parallel with and adapted to contact with the respectivecollars 7 and 8 andvwith the shaft 1, and by whichthe collars 7 and v 8are retained in operative position in their respective cavities 6.

In practice the sheet metal 15 to be operated upon is first cut of suchwidth asto extend from near the collar 7 to near the collar 8 in itscompleted form, being located between the male and the female rolls,asshown in Fig. 1. The edges of the sheet metal 15 will thus at alltimes be adapted tof contact with the collars 7 or 8, thereby preventingthe metal l5 from twisting or moving sidewise, but causing it to travelin a straight course through and between the rolls, therebyaccomplishing the object of this invention.

It is intended that the collars 7 and 8 be of hardened steel, in orderthat they will notbe affected by the edges of the metal l5 contactingtherewith. It should `also be observed that the collars 7 and 8 areseated in the ends of the roll in order that no joint will be formedinto which the edges of the metal l5 might enter.

It is to be understood that various changes may be made in theconstruction and in the arrangement of parts without departing fromthespirit of the invention and without sacrificing any of the advantagesthereof which are new and useful.

Having now fully shown and described my invention, what I claim anddesire to secure by Letters Patent of the United States, is-

1. In combination with a shaft, a roll adapted to revolve with theshaft, a collar rotatably mounted in each end of the roll and eachcollar being also rotatably mounted on said shaft.

In combination with a sheet metal roll, a shaft extending centrallythrough Said roll, a collar mounted in each end of said roll and aroundsaid shaft and extending outward beyond the ends of the roll and beingfree to revolve on the sha-ft and also being free to revolveindependently ofthe roll.

3. A convex roll, a concave roll nesting therewith, a shaft for each ofsaid rolls, there being a socket formed in each end of the convex rolland concentric of the shaft thereof, a collar-bearing rotatably mountedin each of said sockets and adapted to have the edges of the sheetmaterial which passes between said rolls to engage therewith to guidesaid material between the rolls, all substantially as shown anddescribed. n

In testimony whereof I have hereunto subyscribed my name to thisspecification in the presence of two subscribing witnesses.

E HARRISON SCOTT.

Witnesses:

E. F. KLEHFOTH, Roer. W. HANDLE.

